Backpack made of robust, water- and stain resistant 18oz Italian canvas with fine cotton lining. Inner upholstered compartment for A4 materials, tablets or laptops. An additional zipper pocket with front access has space for odds and ends. The tough polyester straps are fully adjustable with a movable buckle and due to a multiple seam system can handle heavy weights.The outer bottom of the backpack is covered with sturdy leather, so you can put it on the ground without any isuess.